Process for the continuous preparation of terpene esters

US5596127A · kind A · utility

Assignee

• Hoechst GmbH · DE

Inventors

• Manfred Gscheidmeier · Gablingen, DE
• Rudolf Gutmann · Gersthofen, DE
• Jakob Wiesm uller · Stettenhofen, DE
• Alfred Riedel · Stadtbergen, DE

Key dates

• Filing date: Jun 5, 1995
• Grant date: Jan 21, 1997
• Expiry date: Jun 5, 2015

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C07C2602/42
• WIPO field: Organic fine chemistry
• WIPO sector: Chemistry

Abstract

In a process for preparing terpene esters by reaction of camphene and a low molecular weight carboxylic acid over an acid ion exchanger as catalyst, the reactants are passed from below through the acid ion exchanger located in a column-shaped reactor at such a velocity that the ion exchanger is suspended to uniformly fill the reactor, i.e. gives a pseudofluid suspended bed. In the case of the preparation of isobornyl acetate, a high specific catalyst productivity, a high selectivity of the reaction with formation of small amounts of other esters, a high degree of conversion of the reaction component used in substoichiometric amount and a high total catalyst productivity are achieved.